Clean-out for drainage systems.



No. 844,020. l l PATENTED FEB. 12, l1907. L. A. HOFFMAN & T. H. HOOVER. CLEAN-OUT FR DRAINAGE SYSTEMS.

APPLICATION FILED DEO.4. 1908.

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ATTORNEY.

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TINTTED STATES PATENT OFFICE.

LOUIS A. HOFFMAN, OF ELIZABETH, AND THOMAS H. HOOVER, OF N EIVARK, NEW JERSEY 5 SAID HOFFMAN ASSIGNOR TO SAID HOOVER.

Specification of Letters Patent.

Patented Feb. 12, 1907.

vApplication filed December 4,1903. Serial No. 183.686.

produced new and original Improvements in i Olean- Outs for Drainage Systems; and we do hereby declare the following to be a full,

clear, and eXact description of the invention,`

such as will enable others skilled in the art to which it appertains to make and use the same, reference being had to the accompanying drawing, and to letters of reference marked thereon, Awhich form a part of this specification.

Our invention relates to clean-outs for sewer and other drainage systems, and comprises an improved terminal fitting for cleanout passages so constructed that the orifices of Such clean-out passages may be made horizontal and may be brought iiush with paving or a cellar bottom or the like and whereby the spigot ends of pipes may be utilized.

The objects of our invention are to facili.- tate the bringing of the orifices of clean-out passages flush with cellar-bottoms, paving, and the like to keep such passages straight to as near the surface as possible and to economize sewer or drain pipes and to permit the utilization of the spigot ends of broken pipes in the construction of such clean-outs.

We will now proceed to describe our invention with reference to the accompanying drawings in which a sewer clean-out, comprising a terminal constructed in accordance with our invention, is illustrated, and will then point out the novel features in claims.

The said drawing shows a longitudinal section ofthe clean-out.

In the said drawing, numeral 10 designates an ordinary drain-pipe, such as is commonly arranged beneath a cellar-bottom, said pipe comprising an angular branch l1, having a bell or thimble end 13, as shown. Into this bell the spigot end of a clean-out pipe I4 isiitted and calked in the ordinary manner. The length of this pipe 14E is such that its upper end is close to the cellar bottom or paving or the like, and to this upper end is applied our improved terminal 15. This terminal fitting is a combined bell-mouth fitting and elbow, the bell-mouth of said fitting receiving the end of pipe le and the passage in said fitting being curved to correspond to the angle of the branch 1I, so that the upper end of the terminal is substantially parallel to and may be flush with the cellar-bottom. The bend is close to the cellar-bottom, as will be seen, the clean-out passage being straight almost to its mouth. The importance of this will be appreciated readily.

T he upper end 17 of the terminal 15 is arranged to be closed by a suitable closure, such as a screw-plug 16.

Because of the bell-mouth with which the terminal 15 is provided it is usually practicable to form the clean-out pipe 14 from a broken section of the pipe used in forming the main drain-pipe 10. Such pipes customarily have a bell-mouth at one end, the other end being a spigot end adapted to fit into a corresponding bell-mouth of a similar pipe. These pipes when they break customarily break at or near the bell-mouth, so that there are usually available drain-pipes unsuitable for ordinary use because broken at or near the bell-mouth, but which may be cut off to proper length and utilized in connection with our improved terminal for the clean-outs.

What we claim is- 1. The combination of a drain or like pipe, a clean-out pipe connected thereto at an oblique angle and a floor-terminal for said clean-out pipe comprising an elbow-iitting having a bell-shaped lower end `litting over the upper end of the clean-out pipe and a closable upper end substantially parallel to floor and drain-pipe, the orifice in said upper end being in line with at least half the lumen of said clean-out pipe.

2. As an article of manufacture, 4a floorterminal for oblique-angled drainage connections, said terminal comprising an elbow- 'fitting having at one end a bell-mouth adapted to receive the spigot end of a clean-out pipe and at the other end a closable mouth provided with a closure, at least half the orifice in the bell-mouth being in line with the orifice in the closable mouth.

In testimony that we claim the foregoing we have hereunto set our hands this lst day of December, i903.

LOUIS A. HOFFMAN. THOMAS H. HOOVER. Witnesses:

CHARLES H. PELL, RUSSELL M. EVERETT.

IOO 

